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Linux
18,386 known vulnerabilities.
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High 7.5
tcp: fix a signed-integer-overflow bug in tcp_add_backlog()
In the Linux kernel, the following vulnerability has been resolved: tcp: fix a signed-integer-overflow bug in tcp_add_backlog() The type of sk_rcvbuf and sk_sndbuf in struct sock is int, and in tcp_add_backlog(), the variable limit is caculated by adding sk_r…
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High 7.5
NFSD: Finish converting the NFSv2 GETACL result encoder
In the Linux kernel, the following vulnerability has been resolved: NFSD: Finish converting the NFSv2 GETACL result encoder The xdr_stream conversion inadvertently left some code that set the page_len of the send buffer. The XDR stream encoders should handle …
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High 7.8
apparmor: Fix memleak in alloc_ns()
In the Linux kernel, the following vulnerability has been resolved: apparmor: Fix memleak in alloc_ns() After changes in commit a1bd627b46d1 ("apparmor: share profile name on replacement"), the hname member of struct aa_policy is not valid slab object, but a …
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High 7.8
netfilter: ebtables: fix table blob use-after-free
In the Linux kernel, the following vulnerability has been resolved: netfilter: ebtables: fix table blob use-after-free We are not allowed to return an error at this point. Looking at the code it looks like ret is always 0 at this point, but its not. t = find_…
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High 7.8
mlx5: fix skb leak while fifo resync and push
In the Linux kernel, the following vulnerability has been resolved: mlx5: fix skb leak while fifo resync and push During ptp resync operation SKBs were poped from the fifo but were never freed neither by napi_consume nor by dev_kfree_skb_any. Add call to napi…
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High 7.8
scsi: mpi3mr: Fix missing mrioc->evtack_cmds initialization
In the Linux kernel, the following vulnerability has been resolved: scsi: mpi3mr: Fix missing mrioc->evtack_cmds initialization Commit c1af985d27da ("scsi: mpi3mr: Add Event acknowledgment logic") introduced an array mrioc->evtack_cmds but initialization of t…
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High 7.5
blk-mq: fix tags leak when shrink nr_hw_queues
In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix tags leak when shrink nr_hw_queues Although we don't need to realloc set->tags[] when shrink nr_hw_queues, we need to free them. Or these tags will be leaked. How to reproduce: 1.…
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High 7.8
serial: 8250: Fix oops for port->pm on uart_change_pm()
In the Linux kernel, the following vulnerability has been resolved: serial: 8250: Fix oops for port->pm on uart_change_pm() Unloading a hardware specific 8250 driver can produce error "Unable to handle kernel paging request at virtual address" about ten secon…
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High 7.5
Revert "IB/isert: Fix incorrect release of isert connection"
In the Linux kernel, the following vulnerability has been resolved: Revert "IB/isert: Fix incorrect release of isert connection" Commit: 699826f4e30a ("IB/isert: Fix incorrect release of isert connection") is causing problems on OPA when DEVICE_REMOVAL is hap…
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High 7.8
net/mlx5e: TC, Fix using eswitch mapping in nic mode
In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: TC, Fix using eswitch mapping in nic mode Cited patch is using the eswitch object mapping pool while in nic mode where it isn't initialized. This results in the trace below [0]. Fi…
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High 8.8
Bluetooth: L2CAP: Fix potential user-after-free
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix potential user-after-free This fixes all instances of which requires to allocate a buffer calling alloc_skb which may release the chan lock and reacquire later which mak…
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High 7.8
Bluetooth: hci_sync: Avoid use-after-free in dbg for hci_remove_adv_monitor()
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: Avoid use-after-free in dbg for hci_remove_adv_monitor() KASAN reports that there's a use-after-free in hci_remove_adv_monitor(). Trawling through the disassembly, you ca…
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High 7.8
net/sched: flower: fix filter idr initialization
In the Linux kernel, the following vulnerability has been resolved: net/sched: flower: fix filter idr initialization The cited commit moved idr initialization too early in fl_change() which allows concurrent users to access the filter that is still being init…
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High 7.8
fs/ntfs3: Add overflow check for attribute size
In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Add overflow check for attribute size The offset addition could overflow and pass the used size check given an attribute with very large size (e.g., 0xffffff7f) while parsing MFT at…
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High 7.8
RDMA/efa: Fix wrong resources deallocation order
In the Linux kernel, the following vulnerability has been resolved: RDMA/efa: Fix wrong resources deallocation order When trying to destroy QP or CQ, we first decrease the refcount and potentially free memory regions allocated for the object and then request …
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High 7.8
drm/i915: fix race condition UAF in i915_perf_add_config_ioctl
In the Linux kernel, the following vulnerability has been resolved: drm/i915: fix race condition UAF in i915_perf_add_config_ioctl Userspace can guess the id value and try to race oa_config object creation with config remove, resulting in a use-after-free if …
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High 7.8
netfilter: nf_tables: always release netdev hooks from notifier
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: always release netdev hooks from notifier This reverts "netfilter: nf_tables: skip netdev events generated on netns removal". The problem is that when a veth device is r…
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High 7.8
tty: fix out-of-bounds access in tty_driver_lookup_tty()
In the Linux kernel, the following vulnerability has been resolved: tty: fix out-of-bounds access in tty_driver_lookup_tty() When specifying an invalid console= device like console=tty3270, tty_driver_lookup_tty() returns the tty struct without checking wheth…
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High 7.8
net/sched: cls_api: remove block_cb from driver_list before freeing
In the Linux kernel, the following vulnerability has been resolved: net/sched: cls_api: remove block_cb from driver_list before freeing Error handler of tcf_block_bind() frees the whole bo->cb_list on error. However, by that time the flow_block_cb instances a…
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High 7.8
f2fs: fix potential corruption when moving a directory
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix potential corruption when moving a directory F2FS has the same issue in ext4_rename causing crash revealed by xfstests/generic/707. See also commit 0813299c586b ("ext4: Fix possible…
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High 7.8
usb: typec: altmodes/displayport: fix pin_assignment_show
In the Linux kernel, the following vulnerability has been resolved: usb: typec: altmodes/displayport: fix pin_assignment_show This patch fixes negative indexing of buf array in pin_assignment_show when get_current_pin_assignments returns 0 i.e. no compatible …
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High 7.1
f2fs: fix to check readonly condition correctly
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to check readonly condition correctly With below case, it can mount multi-device image w/ rw option, however one of secondary device is set as ro, later update will cause panic, so …
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High 7.8
bpf: Disable preemption in bpf_event_output
In the Linux kernel, the following vulnerability has been resolved: bpf: Disable preemption in bpf_event_output We received report [1] of kernel crash, which is caused by using nesting protection without disabled preemption. The bpf_event_output can be called…
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High 7.8
RDMA/mlx4: Prevent shift wrapping in set_user_sq_size()
In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx4: Prevent shift wrapping in set_user_sq_size() The ucmd->log_sq_bb_count variable is controlled by the user so this shift can wrap. Fix it by using check_shl_overflow() in the same w…
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High 7.8
igc: Fix Kernel Panic during ndo_tx_timeout callback
In the Linux kernel, the following vulnerability has been resolved: igc: Fix Kernel Panic during ndo_tx_timeout callback The Xeon validation group has been carrying out some loaded tests with various HW configurations, and they have seen some transmit queue t…
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High 7.8
zsmalloc: move LRU update from zs_map_object() to zs_malloc()
In the Linux kernel, the following vulnerability has been resolved: zsmalloc: move LRU update from zs_map_object() to zs_malloc() Under memory pressure, we sometimes observe the following crash: [ 5694.832838] ------------[ cut here ]------------ [ 5694.84209…
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High 8.0
Bluetooth: ISO: fix iso_conn related locking and validity issues
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix iso_conn related locking and validity issues sk->sk_state indicates whether iso_pi(sk)->conn is valid. Operations that check/update sk_state and access conn should hold lo…
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High 7.8
RDMA/restrack: Release MR restrack when delete
In the Linux kernel, the following vulnerability has been resolved: RDMA/restrack: Release MR restrack when delete The MR restrack also needs to be released when delete it, otherwise it cause memory leak as the task struct won't be released.
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High 8.8
ksmbd: fix possible memory leak in smb2_lock()
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix possible memory leak in smb2_lock() argv needs to be free when setup_async_work fails or when the current process is woken up.
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High 7.8
fsi: occ: Prevent use after free
In the Linux kernel, the following vulnerability has been resolved: fsi: occ: Prevent use after free Use get_device and put_device in the open and close functions to make sure the device doesn't get freed while a file descriptor is open. Also, lock around the…
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High 7.8
sfc: fix crash when reading stats while NIC is resetting
In the Linux kernel, the following vulnerability has been resolved: sfc: fix crash when reading stats while NIC is resetting efx_net_stats() (.ndo_get_stats64) can be called during an ethtool selftest, during which time nic_data->mc_stats is NULL as the NIC h…
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High 7.8
binder: fix UAF of alloc->vma in race with munmap()
In the Linux kernel, the following vulnerability has been resolved: binder: fix UAF of alloc->vma in race with munmap() [ cmllamas: clean forward port from commit 015ac18be7de ("binder: fix UAF of alloc->vma in race with munmap()") in 5.10 stable. It is neede…
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High 7.8
ext4: turn quotas off if mount failed after enabling quotas
In the Linux kernel, the following vulnerability has been resolved: ext4: turn quotas off if mount failed after enabling quotas Yi found during a review of the patch "ext4: don't BUG on inconsistent journal feature" that when ext4_mark_recovery_complete() ret…
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High 7.8
f2fs: Fix system crash due to lack of free space in LFS
In the Linux kernel, the following vulnerability has been resolved: f2fs: Fix system crash due to lack of free space in LFS When f2fs tries to checkpoint during foreground gc in LFS mode, system crash occurs due to lack of free space if the amount of dirty no…
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High 7.5
net: dsa: avoid suspicious RCU usage for synced VLAN-aware MAC addresses
In the Linux kernel, the following vulnerability has been resolved: net: dsa: avoid suspicious RCU usage for synced VLAN-aware MAC addresses When using the felix driver (the only one which supports UC filtering and MC filtering) as a DSA master for a random o…
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High 7.8
gtp: Fix use-after-free in __gtp_encap_destroy().
In the Linux kernel, the following vulnerability has been resolved: gtp: Fix use-after-free in __gtp_encap_destroy(). syzkaller reported use-after-free in __gtp_encap_destroy(). [0] It shows the same process freed sk and touched it illegally. Commit e198987e7…
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High 7.8
tracing/user_events: Ensure write index cannot be negative
In the Linux kernel, the following vulnerability has been resolved: tracing/user_events: Ensure write index cannot be negative The write index indicates which event the data is for and accesses a per-file array. The index is passed by user processes during wr…
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High 7.8
nilfs2: fix WARNING in mark_buffer_dirty due to discarded buffer reuse
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix WARNING in mark_buffer_dirty due to discarded buffer reuse A syzbot stress test using a corrupted disk image reported that mark_buffer_dirty() called from __nilfs_mark_inode_dirty…
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High 7.8
maple_tree: fix potential out-of-bounds access in mas_wr_end_piv()
In the Linux kernel, the following vulnerability has been resolved: maple_tree: fix potential out-of-bounds access in mas_wr_end_piv() Check the write offset end bounds before using it as the offset into the pivot array. This avoids a possible out-of-bounds a…
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High 7.8
erofs: stop parsing non-compact HEAD index if clusterofs is invalid
In the Linux kernel, the following vulnerability has been resolved: erofs: stop parsing non-compact HEAD index if clusterofs is invalid Syzbot generated a crafted image [1] with a non-compact HEAD index of clusterofs 33024 while valid numbers should be 0 ~ lc…